* {
  box-sizing: border-box;
}

body {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-items: center;
  text-align: center;
}

.checker {
  background-color: skyblue;
  border-radius: 10px;
  padding: 10px;
}

label {
  display: block;
}

.tip {
  width: 400px;
  margin: 10px auto;
  padding: 10px;
  background-color: yellow;
  border-radius: 10px;
  box-shadow: 5px 0 5px 0 orange;
}